from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To cause (a glassy material) to become crystalline and brittle.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To become crystalline and brittle

from the GNU version of the Collaborative International Dictionary of English

  • transitive v. To deprive of glasslike character; to take away vitreous luster and transparency from.

from The Century Dictionary and Cyclopedia

  • To destroy or change, either in part or wholly, the vitreous condition of. See devitrification and glass.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. become crystalline
  • v. make (glassy materials) brittle or opaque


de- +‎ vitrify (Wiktionary)


  • Too little heat, or too much, and the result would not set properly: The glaze or color might peel, craze, bubble, or devitrify.

    The Creation of Color in Eighteenth-Century Europe

  • English experimenter will probably prefer to use English glass, and, if he is wise, will buy a good deal at a time, since it does not appear to devitrify with age, and uniformity is thereby more likely to be secured.

    On Laboratory Arts

  • Long-buried glassy lavas devitrify, or pass to a stony condition, under the unceasing action of underground waters; but their flow lines and perlitic and spherulitic structures remain to tell of their original state.

    The Elements of Geology

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